1 files changed, 53 insertions, 0 deletions
diff --git a/spec/frontend/tracking/get_standard_context_spec.js b/spec/frontend/tracking/get_standard_context_spec.js
new file mode 100644
index 00000000000..b7bdc56b801
--- /dev/null
+++ b/spec/frontend/tracking/get_standard_context_spec.js
@@ -0,0 +1,53 @@
+import { SNOWPLOW_JS_SOURCE } from '~/tracking/constants';
+import getStandardContext from '~/tracking/get_standard_context';
+
+describe('~/tracking/get_standard_context', () => {
+  beforeEach(() => {
+    window.gl = window.gl || {};
+    window.gl.snowplowStandardContext = {};
+  });
+
+  it('returns default object if called without server context', () => {
+    expect(getStandardContext()).toStrictEqual({
+      schema: undefined,
+      data: {
+        source: SNOWPLOW_JS_SOURCE,
+        extra: {},
+      },
+    });
+  });
+
+  it('returns filled object if called with server context', () => {
+    window.gl.snowplowStandardContext = {
+      schema: 'iglu:com.gitlab/gitlab_standard',
+      data: {
+        environment: 'testing',
+      },
+    };
+
+    expect(getStandardContext()).toStrictEqual({
+      schema: 'iglu:com.gitlab/gitlab_standard',
+      data: {
+        environment: 'testing',
+        source: SNOWPLOW_JS_SOURCE,
+        extra: {},
+      },
+    });
+  });
+
+  it('always overrides `source` property', () => {
+    window.gl.snowplowStandardContext = {
+      data: {
+        source: 'custom_source',
+      },
+    };
+
+    expect(getStandardContext().data.source).toBe(SNOWPLOW_JS_SOURCE);
+  });
+
+  it('accepts optional `extra` property', () => {
+    const extra = { foo: 'bar' };
+
+    expect(getStandardContext({ extra }).data.extra).toBe(extra);
+  });
+});